65O2型电气集中设备,()信号机应具有主副灯丝自动转换设备。
A. 列车
B. 调车
C. 列车及调车
D. 所有
查看答案
Father() to the son that the basic skill in riding a bicycle is to keep balance.
A point in
B point out
C pointed out
D pointed in
We don’t like Professor Smith’s class,but we have to()it in order to graduate.
A live with
B live for
C live on
D live up to
We should()at a night market tonight.
A hang out
B hang in
C hang off
D hang over
The old lady reacted() her daughter by tearing the check apart.
A against
B at
C on
D to